I found a very interesting piece of Chevrolet Lit. yesterday on the Mirage. It is a :"Louisville Zone Distribution Newsletter", dated May 6, 1977. It seems that different coloured Mirages were "immediately" available to be ordered. With 3 months of production still to go in the 1977 model year, it's safe to assume a few different coloured Mirages made their way onto the roads. Marco found a black/gold one years ago and swore it was factory, looks like this confirms it